Tooth-shaped sand timer



FIG. 1 is a perspective view of a tooth-shaped sand timer showing my new design.

FIG. 2 is a front elevational view thereof on a reduced scale, the rear view being substantially similar thereto but with the `face` omitted and the base being flat;

FIG. 3 is a right-side elevational view thereof on a reduced scale, the left side being a mirror image thereto. 

The ornamental design for a tooth-shaped sand timer, as shown and described. 